摘要
介绍了等温淬火球铁优良的综合力学性能、高的疲劳强度和良好的摩擦磨损特性及目前国内外常用的等温淬火球墨铸铁标准;并针对等温淬火球铁切削加工性能较差的问题,指出生产高质量等温淬火球铁的关键是:致密均匀的组织,高的球化率,球径小、数量多的石墨,合理的化学成分,元素偏析少,及选择正确的热处理参数和控制良好的淬火冷却条件。
It is outlined the development of ADI,and its features,such as good comprehensive mechanical properties,high fatigue strength,good fiction and wear characteristics.the coomon standards of ADI are also introduced.Addressing the poor machinability of ADI,it is pointed out the key to producing good quality ADI is:compact and even structure,good nodularization,a large amount of graphite,reasonable chemical composition,low segregation of elements,and correct parameters for heat treatment and wellcontrolled cooling condition for quenching.
出处
《机车车辆工艺》
2003年第4期1-5,共5页
Locomotive & Rolling Stock Technology
关键词
等温淬火球铁
研究
应用
austempered ductile iron
development
application
